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Journal of Applied Oral Science: Revista FOB

Zeynep B Kutuk, Esra Ergin, Filiz Y Cakir, Sevil Gurgan
OBJECTIVE: To analyze color change, microhardness and chemical composition of enamel bleached with in-office bleaching agent with different desensitizing application protocols. MATERIALS AND METHODS: One hundred and seventeen polished anterior human enamel surfaces were obtained and randomly divided into nine groups (n = 13). After recording initial color, microhardness and chemical composition, the bleaching treatments were performed as G1: Signal Professional White Now POWDER&LIQUID FAST 38% Hydrogen peroxide(S); G2: S+Flor Opal/0...
November 8, 2018: Journal of Applied Oral Science: Revista FOB
Hadeel Mohammed Abbood, Ejaz Pathan, George P Cherukara
Ankylosing Spondylitis (AS) is an inflammatory rheumatic disease that affects the axial skeleton and the sacroiliac joints. Recent studies investigated the link between AS and oral diseases, particularly periodontitis. Others suggested that periodontitis may have a role in the pathogenesis of rheumatic diseases. OBJECTIVE: The aim of this study is to investigate the association between AS and oral conditions. MATERIAL AND METHODS: This research was conducted using the UK Biobank Resource under Application Number 26307...
November 8, 2018: Journal of Applied Oral Science: Revista FOB
Claudia Misue Kanno, Jose Americo de Oliveira, Edilson Ervolino, Ana Maria Pires Soubhia
OBJECTIVE: Myofibroblasts have been associated with the development of several pathologic fibrotic conditions. This longitudinal study aims to assess the proliferative and antiapoptotic effects of cyclosporin, nifedipine and phenytoin on gingival connective tissue cells of nonhuman primate, as well as to analyze a possible role of myofibroblasts in gingival overgrowth. MATERIALS AND METHODS: Gingival samples from the right superior canine area were obtained from 12 male monkeys ( Sapajus spp ) to comprise the control group...
November 8, 2018: Journal of Applied Oral Science: Revista FOB
Mayra Manoella Perez, Juliana Souza Pessoa, Ana Lídia Ciamponi, Michele Baffi Diniz, Maria Teresa Botti Rodrigues Santos, Heloísa Helena de Oliveira Alves, Renata Gorjão, Renata Oliveira Guaré
Obesity is considered a risk factor for periodontal health due to the low- grade inflammation promoted by the increased adipose tissue. OBJECTIVE: This study aimed to determine correlations and associations between gingival inflammation (Simplified Oral Hygiene Index, and Gingival Index), salivary immunoglobulin A (s-IgA), and salivary parameters (salivary flow and osmolality) in normal-weight and overweight/obese children. MATERIAL AND METHODS: Ninety-one children, aged 6 to 12 years old (8...
November 8, 2018: Journal of Applied Oral Science: Revista FOB
Giulia Ghiacci, Simone Lumetti, Edoardo Manfredi, Daniele Mori, Guido Maria Macaluso, Roberto Sala
Stanozolol (ST) is a synthetic androgen with high anabolic potential. Although it is known that androgens play a positive role in bone metabolism, ST action on bone cells has not been sufficiently tested to support its clinical use for bone augmentation procedures. OBJECTIVE: This study aimed to assess the effects of ST on osteogenic activity and gene expression in SaOS-2 cells. MATERIAL AND METHODS: SaOS-2 deposition of mineralizing matrix in response to increasing doses of ST (0-1000 nM) was evaluated through Alizarin Red S and Calcein Green staining techniques at 6, 12 and 24 days...
November 8, 2018: Journal of Applied Oral Science: Revista FOB
Yahui Pan, Xiaodong Xu, Fangfang Sun, Xiangfeng Meng
The stable long-term performance of resin cement under oral environmental conditions is a crucial factor to obtain a satisfactory success of the allceramic dental restoration. OBJECTIVE: This study aimed at evaluating and comparing the surface morphology and mechanical property of conventional and self-adhesive resin cement after aqueous aging. MATERIALS AND METHODS: Disc-shaped specimens of 3 conventional (C1: Multilink N, C2: Duolink, C3: Nexus 3) and 3 self-adhesive (S1: Multilink Speed, S2: Biscem, S3: Maxcem) types of resin cements were subjected to irradiation...
November 8, 2018: Journal of Applied Oral Science: Revista FOB
Daniela Hesse, Clarissa Calil Bonifácio, Cornelis Johannes Kleverlaan, Daniela Prócida Raggio
OBJECTIVE: High viscous glass ionomer cement (GIC) has gained popularity as a restorative material; however, high wear is pointed as one of the major drawbacks of this material. Protective surface coatings were developed to protect GIC from water contamination with the additional advantage of occluding any surface cracks or porosities commonly found in this material, possibly resulting in an increased wear resistance of the restorations. The objective of this study was to investigate the clinical wear of GIC approximal restorations in primary molars protected either with a nanofilled self-adhesive light-cured protective coating (NPC) or with petroleum jelly...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Luiz Renato Olchanheski, Regina Sordi, Junior Garcia Oliveira, Gustavo Ferreira Alves, Reila Taina Mendes, Fábio André Santos, Daniel Fernandes
OBJECTIVE: Periodontitis is associated with endothelial dysfunction, which is clinically characterized by a reduction in endothelium-dependent relaxation. However, we have previously shown that impairment in endothelium-dependent relaxation is transient. Therefore, we evaluated which mediators are involved in endothelium-dependent relaxation recovery. MATERIAL AND METHODS: Rats were subjected to ligature-induced experimental periodontitis. Twenty-one days after the procedure, the animals were prepared for blood pressure recording, and the responses to acetylcholine or sodium nitroprusside were obtained before and 30 minutes after injection of a nitric oxide synthase inhibitor (L-NAME), cyclooxygenase inhibitor (Indomethacin, SC-550 and NS- 398), or calcium-dependent potassium channel blockers (apamin plus TRAM- 34)...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Osmar Aparecido Cuoghi, Lorraine Perciliano de Faria, Edilson Ervolino, Sônia Regina Panzarini Barioni, Francielle Topolski, Victor Elias Arana-Chavez, Marcos Rogério de Mendonça
OBJECTIVE: The purpose of this study was to histologically evaluate pulp and dentin under induced tooth movement (ITM) with different types of forces. MATERIAL AND METHODS: The maxillary right first molars of rats were submitted to movement with continuous (CF), continuous interrupted (CIF) and intermittent (IF) forces during 5, 7 and 9 days with nickel-titanium (NiTi) closed-coil springs exerting 50cN force magnitude. The groups were histologically evaluated as for cellularity pattern, presence of dystrophic, hemodynamic alterations in the pulp as well dentin alterations...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Vanessa Cavalli, Denise Aparecida da Rosa, Daylana Pacheco da Silva, Matheus Kury, Priscila C S Liporoni, Luis Eduardo S Soares, Airton Abraão Martins
OBJECTIVE: High concentrations of hydrogen peroxide can cause adverse effects on composition and structure of teeth. However, the addition of calcium and fluoride in bleaching agents may reduce enamel demineralization. To evaluate chemical changes of sound and demineralized enamels submitted to high concentrations of hydrogen peroxide containing fluoride (F) or calcium (Ca). MATERIAL AND METHODS: Enamel blocks of bovine incisors with standard dimensions were obtained and half of them were submitted to pH-cycling to promote initial enamel caries lesions...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Yue Yang, Wenzhi Li, Benxiang Hou, Chen Zhang
OBJECTIVE: To investigate the relation between biofilm formation ability and quorum sensing gene LuxS/AI-2. MATERIALS AND METHODS: Enterococcus faecalis (E. faecalis) standard strain ATCC 29212 was used in the study. Long flanking homology polymerase chain reaction method was used to build the LuxS gene knockout strain. Sequential culture turbidity measurement and CFU counting were used to assess the proliferation ability of E. faecalis after the depletion of LuxS...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Ramón Franco-Topete, José Sergio Zepeda-Nuño, Ana Lourdes Zamora-Perez, Martha Graciela Fuentes-Lerma, Belinda Claudia Gómez-Meda, Celia Guerrero-Velázquez
OBJECTIVE: Chronic periodontitis (CP) is characterized by gingival inflammation and bone destruction. It has been reported that interferon-gamma (IFN-γ) levels are high in CP patients; however, the IFN-γ receptor (IFN-γR) has not been studied in gingival tissue from these patients. To evaluate IFN-γ levels and IFN-γR expression in gingival tissue biopsies from chronic periodontitis patients compared with healthy subjects (HS). MATERIAL AND METHODS: Gingival tissues were obtained from all study subjects, CP (n = 18) and healthy subjects (HS) (n = 12)...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Maycon Lázaro Pinheiro, Marília Yatabe, Marcos Ioshida, Luan Orlandi, Priscille de Dumast, Ivy Kiemle Trindade-Suedam
OBJECTIVE: The aim of this study was to assess the accuracy of volumetric reconstruction of the pharynx by comparing the volume and minimum crosssectional area (mCSA) determined with open-source applications (ITK-Snap, ; SlicerCMF) and commercial software (Dolphin3D, 11.8, Dolphin Imaging & Management Solutions, Chatsworth, CA, USA) previously validated in the literature. MATERIAL AND METHODS: The sample comprised of 35 cone-beam computed tomography (CBCT) scans of patients with unilateral cleft lip and palate, with mean age of 29±15...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
André Gustavo Paleari, Norberto Martins de Oliveira Junior, Danny Omar Mendoza Marin, Larissa Santana Rodriguez, João Neudenir Arioli Filho, Ana Carolina Pero, Marco Antonio Compagnoni
OBJECTIVE: There is a lack of clinical evidence on mandibular overdentures (MOD) supported by a single implant. To compare patient satisfaction and masticatory performance in MOD supported by one versus two implants in a two-group parallel randomized clinical trial. MATERIAL AND METHODS: Twenty-one patients wearing new maxillary and mandibular complete dentures (CDs) were randomly divided to receive one (GI, n = 11) or two (GII, n = 10) implants in the mandibular arch...
October 4, 2018: Journal of Applied Oral Science: Revista FOB
Fatma Ucan Yarkac, Ozge Gokturk, Osman Demir
OBJECTIVES: The purpose of this study was to determine the impact of nonsurgical periodontal therapy considering the salivary stress-related hormone and cytokine levels in the gingival crevicular fluid (GCF) on pregnant and nonpregnant women. MATERIAL AND METHODS: Thirty non-pregnant (control group) and 30 pregnant women (test group) that met the study inclusion criteria were chosen. Only participants with gingivitis were included. Clinical data and samples of GCF and saliva were collected at baseline and after periodontal therapy...
July 23, 2018: Journal of Applied Oral Science: Revista FOB
Marta Cholewa, Katarzyna Madziarska, Malgorzata Radwan-Oczko
OBJECTIVES: To analyze the association between periodontal conditions and inflammation, nutritional status and calcium-phosphate metabolism disorders in hemodialysis (HD) patients. MATERIAL AND METHODS: We analyzed 128 HD patients divided into two groups: dentate (n = 103) and edentulous (n=25). The following items were assessed: baseline characteristics, age at the start and duration of HD, biochemical data: C-reactive protein (CRP), serum albumin, calcium, phosphorus, alkaline phosphatase, parathormone...
July 23, 2018: Journal of Applied Oral Science: Revista FOB
Ana Paola Nicolielo-Carrilho, Patrícia Abreu Pinheiro Crenitte, Simone Aparecida Lopes-Herrera, Simone Rocha de Vasconcellos Hage
PURPOSE: Reading requires the activation of several cognitive processes, some of which are basic, e.g. recognizing letters and words, whereas others are complex, such as working memory and ability to think about one's own learning strategies. One condition for fulfilling a complex cognitive task, such as understanding a text, is the ability to maintain and process information, which depends on working memory. OBJECTIVE: To analyze the ability of using metacognitive strategies for reading, the phonological working memory of school children with learning disabilities, and also determine if there is relation between these skills and reading comprehension...
July 23, 2018: Journal of Applied Oral Science: Revista FOB
Osny Ferreira Júnior, Etiene Andrade Munhoz, Jéssica de Fátima Segantin, Eduardo Sanches Gonçales, Paulo Sérgio Perri de Carvalho
OBJECTIVE: It is necessary to preserve height and thickness of the alveolar bone to facilitate rehabilitation with osteointegratable implants or simply to maintain bone integrity after extraction. Biomaterials associated with resorbable or non-resorbable membranes, when placed in the region of the socket, may contribute to avoid this unwanted reabsorption. OBJECTIVE: The objective of this study was to evaluate the distance of the crest of alveolar ridge to the cementoenamel junction (CEJ) of the lower second molars and the bone density of the third molar socket filled with Gen-Tech®, 5 years after an exodontia using cone beam computed tomography (CBCT) to visualize the central region of the sockets, without overlapping of the buccal and lingual cortical bones...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
Shelyn Akari Yamakami, Adriana Lemos Mori Ubaldini, Francielle Sato, Antonio Medina Neto, Renata Correa Pascotto, Mauro Luciano Baesso
OBJECTIVE: To investigate the chemical interactions between a high-viscosity glass ionomer cement (GIC) (KetacTM Molar Easymix, 3M ESPE, Seefeld, Bavaria, Germany) and human dentin. It was also analyzed the dynamics of GIC setting mechanism based on the time intervals required for the GIC and the GIC mixed with dentin to achieve stability. MATERIAL AND METHODS: Each constituent of GIC - powder (P) and liquid (L) - and powdered dentin (D), as well as the associations P+L, D+L, and P+L+D in the concentrations of 29%, 50%, 65%, 78%, 82%, and 92% of GIC were analyzed with Fourier transform infrared (FTIR) and Raman spectroscopy...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
Mustafa Özay Uslu, Abubekir Eltas, İsmail Marakoğlu, Serkan Dündar, Kazım Şahin, İbrahim Hanifi Özercan
OBJECTIVE: In this study, we aimed to histologically and immunologically evaluate the effect of diode laser treatment when applied adjunctive to scaling and root planing (SRP) in an experimental periodontitis model. MATERIALS AND METHODS: We used Wistar-Albino rats (n=60) with average weight of 230 g. Experimental periodontitis was induced by ligature at the right and left first mandibular molar teeth in all rats. After 11 days, the ligature was removed and rats were divided into two groups...
July 16, 2018: Journal of Applied Oral Science: Revista FOB
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